I just wanted to chime in here. Yesterday, I lost one of my beloved chickens. She was approximately 16 weeks and seemed perfectly fine the day before. I still have 13 more chickens and as of today they all appear ok. At reading the posts on lethargic chickens, Ive come to the inexperienced conclusion that she made had cocci. She had all the symptoms that most people described when they diagnosed it as cocci. The only difference is that she didn't have blood in her stool and when she was laying down, her but was in the air. The good thing that came out of this, is that now I could possibly prevent any oth fatalities by treating them. I ordered corid and should have it here in a few hours. I will go ahead and treat the rest of my flock as a prevention. I clean the coop down once a week with bleach but after some reading on other posts, I will start alternating with ammonia since apparently bleach doesn't kill all strains of cocci. I also have an enclosed run ( we don't allow them in the yard because we have hawks). Additionally, I try to keep the water and food clean. I've adapted some new methods of watering and feeding that I've also gotten from other posts and tried them in the run? I haven't adapted them into the coop because I wanted to ensure my birds were eating and drinking plenty from my new contraptions. Is there anything I can treat the run with also? The run is on the ground and is essentially dirt. I rake out the run once a week also to help keep it clean. Is there any other treatment is should do also? Once I treat them with corid, how often should I treat them to maintain their health?, I've treated them with this other solution for worms every. 2-3 months. Additionally, do I need to put them on a treatment of tylen50 as a precaution also? Please help, I just want to ensure I don't have any other surprises. I also don't want to have them on a different type of medicine every other week. Any suggestions is greatly appreciated. I'm just looking for a good maintenance regiment to ensure they stay healthy and free of anything hatmful to them.